Hot-blast stove



(No Model.)

E. MASSICKS 8v W. GROOKE.

HOT BLAST STOVB.

No. 398,840. Patented Mer. 5, 1889.

Inventors. 7i/04m MMM Wz @am @Qa/@MM W A el.

Winesea.

UNITED STATES PATENT OEErcE.

HOPAUE MASSICKS AND YALTER CROOKE, OF THE PARISH OF MILLOM, COUNTY OFOUMBERLAND, ENGLAND, ASSIGNORS TO GEORGE YV. MCCLRE AND LOUISA SCHULER,EXECTRIX, BOTH OF PITTSBRG,

PENNSYLVANIA.

HOT=BLAST STGVE.

SPECIFCATION forming part of Letters 'Patent No. 398,840, dated March 5,1889.

Application filed October 2Q, 1886. Serial No. 217,538. No modeli)Patented in England March 24.-, 1881, No. 1,312.

To all 'whom 'it may conca/'12,.-

Be it known that we, HORACE MASSICKS and VALTER CROOKE, both of theparish of Milis a valve cmitrolling the line 71, by operation lom, inthe county of Cumberland, England, y

have invent-ed a new and useful Improvement in Hot-Blast Stoves,(patented to us in Engi land on March 24,188LNO. 1,3125) and we do lhereby declare the following to be a full, clear,

and exact description thereof, reference bei ing had to the accompanyingdrawings, formg ing a part of this speciication, in whichthe iiues cthrough horizontal arched uesm.

Figure l is a vertical section of a hot-blast t stove constructedaccording to the principles of our invention. Fig. 2 is a horizontalcrosssection on the line c a: of Fig. l.

Like symbols of reference indicate likeparts in each,

n is the usual hot-air valve, A is the gasvalve, and p is a iue throughwhich air is admitted to support combustion in the iiue E.

The operation is as follows: To heat the lines of the stove, the valve Dof the cold-air pipe i and the valve/n of the.l10tblast pipe B areclosed and the gas-valve A and the valve h of the dischargeiiue 71l areopened. The

gas will then enter the iue E and ignite, and

In the drawings, a represents the hollow c vlindrical shell of ahot-blast stove it is divided by vertical concentric walls or divisionsd a2 a3, which are preferably divided segmentally by vertical radialwalls or .y divisions B, extending' from the middle of the 3 the centerot' the stove, but the radial walls B divide it into segments for thegreater part of its length. B v means of these walls the stove isdivided into three sets ot' vertical lines-thc Iiues l) l1', which arepractically one liuc, the tlue c, and the V(lues d dwhich together formone 'lue and unite at their bases, opening into the vertical liuc E',which, through an arched horizontal branch, E, leads to the liotdilastmain l and to the gas-main A. At 'the top olf the di vision-wall a3 theflues d, d', and, c open into a common dome or chamber, e, whichconncctsthcm. The fines h h are connected at the top of the stove by ahorizontal arched ,tlue,f, and from this tine branch flucs g lead to thedischarge or stack flue 71 which is at the top of the stove.

i is the cold-blast supply-pipe, which enters the fines g at the base ofthe stack-line 7L.

D is a valve controlling the pipo 1', and 7i thence will traverse theuptake lines d d', chamber e, [lues c, tlues m, and thence up throughlines b b and iiues g to the dischargestack 7i. lVhen the walls havebeen heated sulicientlv, the valves h and A are closed and the valves Dand n opened. The cold blast will then pass downward from pipe i'through tlues g and b b', thence up through the flucs c into chamber e,and downward through iiues d d into iiue E, and thence through thehot-blast main B to the furnace.

The principal feature of our invention as thus described is the locationol the dischargeiue 72 and the cold-blast inlct at the top of the stove,in -onnection with the first or main comImstion-llncs located at thecenter or midi die portion ol the st ove, and thc use of. an odd numberol' sots of Ilucs or passes, b b', c, and d d, whcrcb)- we are enabledto have this arrangement. 'lhe advantage of this position of the tine lzand (lues (l f/v' is that it. avoids the nect-lssit;Y l'or thcuse oflarge independent stack; and at the same time the main and lirst heat iscomnninicated to the middle portion ot the stove, wherebyloss of heat byradiation is avoided, and also greater facilities are of tered incleaning the stove from foreign deposits. n

lv reason olf its little cost, our improved stove is of great advantagefor use with small furnaces and as an auxiliary stove for largefurnaces, whereit is not desirable to construct a large stack and Wherethe stacks already in use have not sufcient capacity to accommodate anadditional stove.

We do not limit ourselves to the precise arrangement of the fines whichWe have shown and described; nor do We desire to claim, broadly, what isknown as a three-Way hoff blast stove, as the same is shown anddescribed in certain .foreign Letters Patent granted for inventions madeby Camille Leveque, among which are British Letters Patent No. 3,376,dated October 18, 1873;,but

What We claim as our invention is- 1. A vertical hot-blast stoveconstructed 'with a gas-inlet leading to an uptake Hue or fines arrangedcentrally of the stove, a suitable number of downtake flues outside ofthe central ue, and a final uptake flue 0r lues outside of the downtakefines, a chimney-flue leading therefrom at the top of the stove, andvalves at the gas-inlet and at the chimney adapted to control the flowof Iair and gas to and from the stove, substantially HORACE MASSIOKS.WALTER OROOKE.

Witnesses:

G. A. COWARD, JOHN GRAHAM,

Both, of ll/[llom, Cumberland.

